*Wardhaugh, Ronald. An Introduction to Sociolinguistics. Oxford: Blackwell, 1992. sample text google
*Olshtain, Elite. “Language in Society”. Research in Language Learning: Priciples, Processes and Prospects. [Northeast Conference Reports]. Ed. Alice Omaggio Hadley. Lincolnwood, IL: National Textbook Company, 1993. 47-65.
*Olshtain, Elite. “Language in Society”. Research in Language Learning: Priciples, Processes and Prospects. [Northeast Conference Reports]. Ed. Alice Omaggio Hadley. Lincolnwood, IL: National Textbook Company, 1993. 47-65.